From 6efdea8997cda4d737777f9be89cc9991120df64 Mon Sep 17 00:00:00 2001
From: nhzlx <zlx_hg@163.com>
Date: Mon, 15 Apr 2019 15:13:02 +0000
Subject: [PATCH] 1. add shuffle_channel_detect

---
 paddle/fluid/framework/ir/CMakeLists.txt      |  1 +
 .../framework/ir/graph_pattern_detector.cc    | 31 +++++++++++++++++++
 .../framework/ir/graph_pattern_detector.h     | 15 +++++++++
 .../inference/api/paddle_pass_builder.cc      |  4 +++
 4 files changed, 51 insertions(+)

diff --git a/paddle/fluid/framework/ir/CMakeLists.txt b/paddle/fluid/framework/ir/CMakeLists.txt
index ba1d7379c..a26732926 100644
--- a/paddle/fluid/framework/ir/CMakeLists.txt
+++ b/paddle/fluid/framework/ir/CMakeLists.txt
@@ -70,6 +70,7 @@ pass_library(sync_batch_norm_pass base)
 pass_library(runtime_context_cache_pass base)
 pass_library(quant_conv2d_dequant_fuse_pass inference)
 pass_library(fillconstant_elementwisemul_fuse inference)
+pass_library(shuffle_channel_detect_pass inference)
 
 if(ANAKIN_FOUND)
 pass_library(simplify_anakin_priorbox_detection_out_pass inference)
diff --git a/paddle/fluid/framework/ir/graph_pattern_detector.cc b/paddle/fluid/framework/ir/graph_pattern_detector.cc
index 77f50e914..0dcf06490 100644
--- a/paddle/fluid/framework/ir/graph_pattern_detector.cc
+++ b/paddle/fluid/framework/ir/graph_pattern_detector.cc
@@ -1706,6 +1706,37 @@ void patterns::QuantDequantOpFuse::operator()(PDNode *quant_op_input,
   }
 }
 
+void patterns::ShuffleChannelPattern::operator()(PDNode *reshape1_in) {
+  auto reshape1_op =
+      pattern->NewNode(reshape1_op_repr())->assert_is_op("reshape2");
+
+  auto reshape1_out = pattern->NewNode(reshape1_out_repr())
+                          ->assert_is_op_output("reshape2", "Out")
+                          ->assert_is_op_input("transpose2")
+                          ->AsIntermediate();
+
+  auto transpose_op =
+      pattern->NewNode(transpose_op_repr())->assert_is_op("transpose2");
+
+  auto transpose_out = pattern->NewNode(transpose_out_repr())
+                           ->assert_is_op_output("transpose2", "Out")
+                           ->assert_is_op_input("reshape2")
+                           ->AsIntermediate();
+
+  auto reshape2_op =
+      pattern->NewNode(reshape2_op_repr())->assert_is_op("reshape2");
+  auto reshape2_out = pattern->NewNode(reshape2_out_repr())
+                          ->assert_is_op_output("reshape2", "Out")
+                          ->AsOutput();
+
+  reshape1_op->LinksFrom({reshape1_in});
+  reshape1_out->LinksFrom({reshape1_op});
+  transpose_op->LinksFrom({reshape1_out});
+  transpose_out->LinksFrom({transpose_op});
+  reshape2_op->LinksFrom({transpose_out});
+  reshape2_out->LinksFrom({reshape2_op});
+}
+
 }  // namespace ir
 }  // namespace framework
 }  // namespace paddle
diff --git a/paddle/fluid/framework/ir/graph_pattern_detector.h b/paddle/fluid/framework/ir/graph_pattern_detector.h
index 525987e00..907371b56 100644
--- a/paddle/fluid/framework/ir/graph_pattern_detector.h
+++ b/paddle/fluid/framework/ir/graph_pattern_detector.h
@@ -892,6 +892,21 @@ struct QuantDequantOpFuse : public PatternBase {
   }
 };
 
+struct ShuffleChannelPattern : public PatternBase {
+  ShuffleChannelPattern(PDPattern* pattern, const std::string& name_scope)
+      : PatternBase(pattern, name_scope, "shufflechannel_pattern") {}
+
+  void operator()(PDNode* reshape1_in);
+
+  PATTERN_DECL_NODE(reshape1_op);
+  PATTERN_DECL_NODE(reshape1_out);
+
+  PATTERN_DECL_NODE(transpose_op);
+  PATTERN_DECL_NODE(transpose_out);
+  PATTERN_DECL_NODE(reshape2_op);
+  PATTERN_DECL_NODE(reshape2_out);
+};
+
 }  // namespace patterns
 
 // Link two ir::Nodes from each other.
diff --git a/paddle/fluid/inference/api/paddle_pass_builder.cc b/paddle/fluid/inference/api/paddle_pass_builder.cc
index fea291c55..ab347b858 100644
--- a/paddle/fluid/inference/api/paddle_pass_builder.cc
+++ b/paddle/fluid/inference/api/paddle_pass_builder.cc
@@ -79,7 +79,11 @@ const std::vector<std::string> kAnakinSubgraphPasses({
     "fc_fuse_pass",                                 //
     "conv_elementwise_add_fuse_pass",               //
     "fc_gru_fuse_pass",                             //
+    "graph_viz_pass",                               //
+    "shuffle_channel_detect_pass",                  //
+    "graph_viz_pass",                               //
     "anakin_subgraph_pass",                         //
+    "graph_viz_pass",                               //
     "fc_gru_fuse_pass",                             //
 });
 
-- 
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